Heap out-of-bounds write in Linux kernel - CVE-2018-5332

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Main Vulnerability Database Vulnerabilities #VU10002

Heap out-of-bounds write in Linux kernel - CVE-2018-5332

Published: January 11, 2018 / Updated: January 12, 2018


Vulnerability identifier: #VU10002
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-5332
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to  cause DoS condition on the target system.

The weakness exists in the rds_message_alloc_sgs() function due to improper validation of DMA page allocation values. A local attacker can trigger a heap-based out-of-bounds write and cause the system to crash.

Affected software

Linux kernel
Debian Linux
SUSE Linux
Fedora
MRG Realtime
kernel

How to mitigate CVE-2018-5332

Install update from vendor's website.

kernel - addressed in versions 4.14.14-200.fc26, 4.14.14-300.fc27

External References

Related Security Bulletins